3-Aminophenol

3-Aminophenol

3-Aminophenol

Chemical compound

3-Aminophenol is an organic compound with formula C6H4(NH2)(OH). It is an aromatic amine and a phenol. It is the meta isomer of 2-aminophenol and 4-aminophenol.

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Preparation

3-Aminophenol can be prepared by caustic fusion of 3-aminobenzenesulfonic acid (i.e. heating with NaOH to 245 °C for 6 hours)[4] or from resorcinol via a substitution reaction with ammonium hydroxide.[5]

Uses

One of the most relevant applications of the substance is the synthesis of 3-(diethylamino)phenol, key intermediate for the preparation of several fluorescent dyes (e.g., rhodamine B). Other uses for the compound include hair dye colorants and stabilizers for chlorine-containing thermoplastics.[4]

References

  1. [1]
    [https://www.sigmaaldrich.com/US/en/product/aldrich/100242 |ALDRICH&N5=SEARCH_CONCAT_PNO|BRAND_KEY&F=SPEC 3-Aminophenol] at Sigma-Aldrich.
  2. [2]
    Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 690. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4. Only one name is retained, phenol, for C6H5-OH, both as a preferred name and for general nomenclature. The structure is substitutable at any position. Locants 2, 3, and 4 are recommended, not o, m, and p.
  3. [3]
    Haynes, William M., ed. (2016). CRC Handbook of Chemistry and Physics (97th ed.). CRC Press. pp. 5–89. ISBN 978-1498754286.
  4. [4]
    Mitchell, Stephen C.; Waring, Rosemary H. (2000). "Aminophenols". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a02_099. ISBN 9783527303854.
  5. [5]
    Harada, Haruhisa; Hiroshi, Maki; Sasaki, Shigeru (1986). "Method for the production of m-aminophenol EP0197633A1". Google Patents. Sumitomo Chemical Company, Limited. Retrieved 3 February 2015.
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